Tire-protector.



Patented Sept. 2, 1913.

ATTORNEY J. BROTSGHNBIDER.

TIRE PROTECTOR. APPLICATION FILED JUNE 5, 1918.

UNITE JULIUS BROTSGHNEIDER, OF

STATES SAN FRANCISCO, CALIFORNIA.

TIRE-PROTECTOR.

Application filed June 5,

T) all (U/1.07711 it may concern. Be it known that I,

the county of San Francisco and State of California, have invented new and useful improvements in Tire-Protectors, of which the following is a specification.

This invention relates to im n-ovements in protectors for pneumatic tires, the object oil. the invention being to provide a device of this character which, while ailording complete protection to the tire, will at the same time have great resiliency with reference to the center of the Wheel, will support the pneumatic tire against sidewise movement when turning corners, and will transmit the driving power from the center to the surface of the protector in contact with the ground.

Inthe accompanying drawing, l igure l is a broken side view of a wheel, constructed in accordance with my invention, as it would appear when supporting a load; and Fig. 2 is an enlarged cross-sectional view of the rim tire and protector.

Referring to the drawing, 1 indicates a wheel, such as used on automobiles, having an inner pneumatic tube 2, an outer 3, and a clencher rim 1.

6 indicates a metallic band, formed in two sections bolted together, as shown at 7, for the purpose of easy removal and replacement. Its cross-sectional form is semi-circular, except that the middle portion is formed with a wide groove to receive an an nular tread 8 of rubber or other suitable material. However, this tread can be omitted if desired, and the band can be made of uniform thickness throughout its width. At unit'orm intervals in its circum'terence there are secured to the band on each side thereof, near its edges, pins 9 extending outwardly, or through holes formed in the lower members 10 of angle plates ll, and are secured therein by cotter pins 12. lnto the upper or horizontal members 13 oi. said angle plates are screwed the lower ends of bolts 141; extending in a radial. direction from the axis of the wheel, and having heads 15. The rim 4; of the tire ditl'ers from the ordinary rim in having on each side a series, corresponding to the series of pins 9 and bolts let, of apertured lugs 16 extending inwardly, or toward the axis of the wheel. Through the apertures in said lugs extend Specification of Letters Patent.

JULiUs Bno'r- SCHNEIDER, a sub ect of the Emperor ot Austr1aHungary, residing at San Francisco, in

Patented Sept. 2,1913.

1913. Serial No. 771,862.

1 the stems 17 of screw eyes, a stem on one side of the wheel having at its inner end external, and on the other side internal threads, so that their inner ends screw one into the other, as shown at 18. Said stems pass through holes 23 in the ordinary rim .24; of the wheel. The bolts 1 L pass through the eyes of said screw eyes and coiled springs 19, 20, surround the bolts, and are compressed between the flat sides oil the screw eyes and the angle plates 11 and washers 21 respectively, said washers Q1 abutting against the heads '15 of said bolts. By reason of the fact that the screw eye stems pass loosely through the lugs 16, and can turn therein, each bolt 14. can, when arriving at a position level with the axis ot the wheel, as shown in Fig. I, assume a direction making an angle with the radius thereto, aml consequently the resiliency ot the tire protector with reli'erence to the wheel is not impaired.

The advantages of the invention will be apparent from the description of its con struction. The protector completely protects the pneumatic tire 't'rom puncture, and at the same time it has great resiliency with reference to the center of the wheel, and therefore to the load to be supported. The pneumatic tire is held very tirmly against movement in a direction parallel with the axis ot. the wheel. At the same time, these bolts and springs atl'ord a resilient: means for transmitting the driving power from the driving sha'tti through the wheel to the surface ol the prottactor in contact with the ground.

'1. A, protector tor a pneumatic tire consisting of a sheet metal band surrounding the tire and ot semi-circular cross section, a series oil? pins extending from each side ot the protector, apertured angle plates secured to said pins, screw eyes having stems extending tlnrough apertures in the rim, bolts passing through said screw eves and screwed into said angle plates, and coiled springs surrounding said bolts and compressed between the screw eyes and the angle plates and boltheads respectively.

2. A protector tor a pneumatic tire consisting of a sheet metal band surrounding the tire and of semi-circular cross section, a series of pins extending from each side of the protector, aperturcd devices pivoted to said pins, screw e ves having stems extending across the rim, bolts passing through said screW eyes and screwed into said devices, and coiled springs surrounding said bolts and compressed between the screw eyes and the devices and bolt heads respectively.

3. A protector for a pneumatic tire consisting of a sheet metal band surrounding the tire and of semi-circular cross section, and provided with a series of pins extending from each side thereof apertured devices pivoted to said pins, stems extending across the rim of the Wheel and having eyes at their ends, bolts passing through said eyes and screwed into said devices, and coiled springs surrounding said bolts and compressed between said eyes and said devices and bolt heads respectively.

In testimony whereof I have hereunto set my hand in the presence of tWo subscribing Witnesses.

JULIUS BROTSCHNEIDER.

Witnesses:

F. M. lVRIerrr, D. B. RICHARDS.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents Washington, D. C. 

